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CVE-2021-21187

Published: 9 March 2021

Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name.

Notes

AuthorNote
alexmurray
The Debian chromium source package is called chromium-browser in
Ubuntu
mdeslaur
starting with Ubuntu 19.10, the chromium-browser package is just
a script that installs the Chromium snap

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
chromium-browser
Launchpad, Ubuntu, Debian
bionic
Released (89.0.4389.82-0ubuntu0.18.04.1)
focal Not vulnerable
(code not present)
groovy Not vulnerable
(code not present)
trusty Does not exist

upstream
Released
xenial
Released (89.0.4389.82-0ubuntu0.16.04.1)

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N